Cancer Cure Book

How do I write a book and make it successful?
I’m 18 and want to write a book about the cure for cancer and how to cure diseases so everyone can know, is this illegal?
Should i make a website online about it or what?
To have a successful book, you must have a story a lot of people want to read. Makes sense, right? You can write about the cure of cancer. But do you really know it?




